Zoom
Good question, I am not running a stand alone pres reg, I am running a deadheaded no-return, Edelbrock external pump that is internally regulated to 6.5 psi (it actually has a fine adjustment screw if needed), I am measuring about 6.00-6.25psi at the carb. I realize there are some pressure pulses in the fuel line that the gauge needle must dampen, but a good gauge will dampen these pulses, my Moroso gauge did for about 40 minutes
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Your regulator is dampening these pulses so your needle is more stable perhaps. Thx
Bill